| MA Laboratories, INC. CA | Wholesale Trade | 4 | $78,750 | - |
| MA Medina Farm Labor Services, Inc CA | Agriculture & Forestry | 0 | - | B |
| MA Technologies LLC TX | Professional & Technical Services | 2 | $135,200 | - |
| MA United Corp NJ | Professional & Technical Services | 1 | $115,918 | - |
| MA1 Logistics, Inc. CA | Transportation & Warehousing | 0 | - | F |
| Maa IT Solutions, LLC. NJ | - | 1 | $134,980 | - |
| MAAC Machinery Co, Inc IL | Manufacturing | 0 | - | F |
| Maadhu Global Business Solutions LLC. TX | - | 2 | $110,240 | - |
| Maag Gala, Inc. VA | - | 1 | $105,473 | - |
| Maagsoft INC NY | Professional & Technical Services | 4 | $99,549 | - |
| Maak Haus Inc. NY | - | 1 | $104,000 | - |
| Maakay Group, LLC MD | Administrative & Waste Services | 1 | $78,146 | - |
| Maantic, Inc. CA | Professional & Technical Services | 21 | $155,000 | - |
| Maas Energy Works, LLC CA | Manufacturing | 1 | $75,000 | A |
| Maas Nursery, INC. TX | Retail Trade | 0 | - | F |
| Maaschhoff's NE | - | 0 | - | - |
| Maass Corporation SPC CA | Retail Trade | 0 | - | F |
| Maax Bath AZ | Manufacturing | 0 | - | F |
| Maax Spa IA | Manufacturing | 0 | - | F |
| Maayee, Inc. GA | Professional & Technical Services | 8 | $102,440 | - |
| Maba Aero LLC FL | Transportation & Warehousing | 2 | $53,768 | - |
| Mabel 4th Street Health Care Center CA | - | 0 | - | - |
| Mabel First Street Health Care Center CA | - | 0 | - | - |
| Mabel Northside Skilled Nursing Facility CA | - | 0 | - | - |
| Maberry Packing LLC WA | Agriculture & Forestry | 0 | - | D |
| MAC Berry Farms, LLC CA | - | 0 | - | - |
| MAC Construction Co., Inc. SD | Construction | 0 | - | F |
| Mac Discount, LLC PA | Retail Trade | 0 | - | B |
| MAC Inc ND | - | 0 | - | - |
| MAC Medical, Inc. IL | Manufacturing | 0 | - | F |
| Mac Papers LLC FL | Manufacturing | 0 | - | C |
| Mac Practice NE | - | 0 | - | - |
| Mac Property Management, LLC NJ | Real Estate | 0 | - | F |
| MAC Trailer Enterprises, Inc. OH | Manufacturing | 1 | $90,066 | A |
| Mac's Bar and Grill MN | - | 0 | - | - |
| Macalester College MN | Educational Services | 4 | $74,000 | - |
| MacAllister Machinery IN | - | 2 | $119,000 | - |
| Macallister Machinery LLC IN | Other Services | 0 | - | A |
| Macallister Machinery LLC MI | Other Services | 0 | - | A |
| Macannie MD | Professional & Technical Services | 3 | $180,000 | - |
| Macapa Logistics IA | Administrative & Waste Services | 0 | - | - |
| Macar & Sons, Inc FL | Wholesale Trade | 1 | $117,562 | - |
| MacArthur Company IA | Manufacturing | 0 | - | F |
| MacArthur Park Corporation dba MacArthur Park Restaurant CA | - | 0 | - | - |
| Macco's Floor Covering Center, Inc. WI | Retail Trade | 0 | - | D |
| Maccormack Plumbing, INC. MA | Construction | 0 | - | F |
| MacDermid, Incorporated CT | Manufacturing | 1 | $105,000 | - |
| MacDonald & Owen Lumber Co. PA | Wholesale Trade | 0 | - | F |
| MacDonald & Owen Lumber Co. WI | Wholesale Trade | 0 | - | D |
| Macdougal Restaurant dba Off The Wagon NY | - | 0 | - | - |